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  Inverter driving apparatus and liquid crystal display including inverter driving apparatusUSPTO Application #: 20080024422Title: Inverter driving apparatus and liquid crystal display including inverter driving apparatus Abstract: An inverter driving apparatus for driving a plurality of lamp units is provided. The inverter driving apparatus includes a plurality of inverter boards for generating driving signals for driving respective lamp units based on a control signal and a voltage signal. Each lamp unit includes at least one lamp, and the plurality of inverter boards are connected in series and include a first outer inverter board receiving the control signal and a second outer inverter board located opposite the first outer inverter board receiving the voltage signal. Each of the plurality of inverter boards transmits the control signal and/or the voltage signal to at least one of the plurality of inverter boards adjacent thereto. (end of abstract) Agent: Cantor Colburn, LLP - Bloomfield, CT, US Inventors: Sang-Soo KIM, Moon-Shik KANG, Jin-Ho HA, Seung-Hwan MOON USPTO Applicaton #: 20080024422 - Class: 345102000 (USPTO) The Patent Description & Claims data below is from USPTO Patent Application 20080024422. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application is a divisional application of U.S. application Ser. No. 10/656,459 filed Sep. 5, 2003, which claims priority to and the benefit of Korean Patent Application No. 2002-0053540, filed on Sep. 5, 2002, all of which are incorporated by reference herein in their entirety. BACKGROUND OF THE INVENTION [0002] (a) Field of the Invention [0003] The present invention relates to an inverter driving apparatus and a liquid crystal display including an inverter driving apparatus. [0004] (b) Description of the Related Art [0005] Display devices used for monitors of computers and television sets include self-emitting displays such as light emitting diodes (LEDs), electroluminescences (ELs), vacuum fluorescent displays (VFDs), field emission displays (FEDs) and plasma panel displays (PDPs) and non-emitting displays such liquid crystal displays (LCDs) requiring light source. [0006] An LCD includes two panels provided with field-generating electrodes and a liquid crystal (LC) layer with dielectric anisotropy interposed therebetween. The field-generating electrodes supplied with electric voltages generate electric field in the liquid crystal layer, and the transmittance of light passing through the panels varies depending on the strength of the applied field, which can be controlled by the applied voltages. Accordingly, desired images are obtained by adjusting the applied voltages. [0007] The light may be emitted from a light source such as a lamp equipped in the LCD or may be natural light. When using the equipped light source, the total brightness of the LCD screen is usually adjusted using an inverter by regulating the ratio of on and off times of the light source or by regulating the current through the light source. [0008] The LCD for a large screen system such as television sets, which is required to have high luminance, includes several inverter boards, each inverter board driving at least one lamp. Accordingly, several wires for signal transmission of voltage signals from a system board of the system to each inverter board and for signal transmission of control signals from a control board, which controls display operations of the panels based on signals from the system board, to each inverter board are required and make the configuration of the LCD complicated. Sometimes, the complicated wire configuration needs a separate circuit board for the wires supplying the voltage signals and the control signals, which increases the production cost of the system. Furthermore, the length of the wires is increased to increase the power loss between the inverter board and the system board or the control board. SUMMARY OF THE INVENTION [0009] A motivation of the present invention is to solve the problems of the conventional art. [0010] According to an embodiment of the present invention, an inverter driving apparatus for driving a plurality of lamp units is provided, which includes: a plurality of inverter boards for generating driving signals for driving respective lamp units based on a control signal and a voltage signal. Each lamp unit includes at least one lamp, and the plurality of inverter boards are connected in series and include a first outer inverter board receiving the control signal and a second outer inverter board located opposite the first outer inverter board receiving the voltage signal. Each of the plurality of inverter boards transmits the control signal and/or the voltage signal to at least one of the plurality of inverter boards adjacent thereto. [0011] The at least one lamp of each lamp unit preferably includes a plurality of lamps connected in parallel. [0012] The serial connection between the inverter boards is preferably made along a direction perpendicular to a length direction of the at least one lamp. [0013] Each of the plurality of inverter boards preferably includes two connectors for signal transmission of the control signal and the voltage signal. [0014] It is preferable that each connector preferably has a plurality of pins, and the pins of adjacent two of the connectors are arranged in opposite order. For example, the pins of the two connectors in each of the plurality of inverter boards are arranged in opposite order and furthermore, the pins of adjacent two connectors in adjacent two of the plurality of inverter boards are arranged in opposite order. [0015] The two connectors of each of the plurality of inverter boards preferably includes a first connector for receiving the control signal and transmitting the voltage signal and a second connector for receiving the voltage signal and transmitting the control signal. [0016] Each of the plurality of inverter boards may further include a plurality of electrical members electrically connected to the connectors for generating the driving signal and/or a plurality of wires for interconnecting the two connectors included therein. [0017] Preferably, the first outer inverter board includes a first connector for receiving the control signal and a second connector for receiving the voltage signal from and transmitting the control signal to another of the plurality of inverter boards and the second outer inverter board includes a first connector for receiving the voltage signal and a second connector for receiving the control signal from and transmitting the voltage signal to another of the plurality of inverter boards. The plurality of inverter boards may further include an intermediate inverter board connected to the first outer inverter board and including a first connector for receiving the control signal from and transmitting the voltage signal to the first outer inverter board and a second connector for receiving the voltage signal from and transmitting the control signal to another of the plurality of inverter boards. Similarly, the plurality of inverter boards may further include an intermediate inverter board connected to the second outer inverter board and including a first connector for receiving the control signal from and transmitting the voltage signal to another of the plurality of inverter boards and a second connector for receiving the voltage signal from and transmitting the control signal to the second outer inverter board. [0018] A liquid crystal display is provided, which includes: a liquid crystal panel assembly including a plurality of gate lines, a plurality of data lines, and a plurality of pixels connected to the gate lines and the data lines; a gate driving circuit for driving the gate lines; a data driving circuit for driving the data lines; a plurality of lamp units including a plurality of lamps illuminating the panel assembly; a system board for generating image signals, first control signals for controlling the image signals, and a voltage signal for driving the lamps; a control board for processing the image signals from the system board based on the first control signals from the system board, generating second control signals for controlling the processed image signals and a third control signal for driving the lamps, and providing the processed image signals and the second control signals for the driving circuits; and a plurality of inverter boards connected in series for generating driving signals for driving the lamps based on the third control signal from the control board and the voltage signal from the system board. [0019] Preferably, each inverter board transmits the third control signal or the voltage control signal to at least one of inverter boards adjacent thereto and a transmission path of the third control signal is opposite a transmission path of the voltage signal. [0020] The at least one lamp of each lamp unit preferably includes a plurality of lamps connected in parallel. [0021] The serial connection between the inverter boards is preferably made along a direction perpendicular to a length direction of the at least one lamp. Continue reading... Full patent description for Inverter driving apparatus and liquid crystal display including inverter driving apparatus Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Inverter driving apparatus and liquid crystal display including inverter driving apparatus patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Inverter driving apparatus and liquid crystal display including inverter driving apparatus or other areas of interest. ### Previous Patent Application: Liquid crystal display driver and liquid crystal display device mounting the same Next Patent Application: Method and device for driving liquid crystal display panel, and liquid crystal display device using same Industry Class: Computer graphics processing, operator interface processing, and selective visual display systems ### FreshPatents.com Support Thank you for viewing the Inverter driving apparatus and liquid crystal display including inverter driving apparatus patent info. 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